Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Due to the urbanization and growth of cities, many of the water sources in and around the cities like Chennai has dwindled. Catchments areas have been converted into houses. Lakes have dried up and individual houses are going for rainwater harvesting. Over exploitation of groundwater has resulted in seawater intrusion leading to non-reversible contamination of groundwater potential. Considering the above problem CLRI has taken up a lead role in recovery and reuse of water from its Quarters. At present CLRI is purchasing raw water to the tune of Rs. 12,000/day. Part of the water is also used for gardening. To save on the expenditure towards water cost and to show a lead path in recovery and reuse of water, CLRI is treating about 30m3 of domestic wastewater in Up flow Anaerobic Sludge Blanket (UASB) reactor for reduction of organic matter followed by waste stabilization pond for reduction of fecal coliform. An UASB has been fabricated with Fiber Reinforced Plastic (FRP) for this study. The total capacity of the reactor is 12.5m3 followed by waste stabilization pond (WSP) of 40 m3 capacity. HRT of the reactor was maintained at 10–12 hrs. The domestic wastewater had an average BOD5 of 135mg/l and COD of 373mg/l respectively. 4660% of COD, 50–60% of BOD was removed successfully. Fecal Coliform MPN/100ml was reduced from an average of 6.2 × 106 to 9.2 × 103 MPN /100ml with an average removal efficiency of 87% in WSP. The study shows production of 0.7m3 methane per day. VFA: Alkalinity ratio lies below 0.4 shows that the reactor was stabilized without any major change in pH. Two-month study shows satisfactory performance of UASB and WSP in tropical climates for the treatment of domestic wastewater. The results clearly show that treated water from waste stabilization pond can be reused. Therefore from the treatment of domestic wastewater of about 30m3/day, CLRI is decided to implement a full-scale plant to treat the total wastewater of about 200m3 in order to reuse the water for gardening and aquaculture purposes.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2004-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more